冒泡排序
<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<body>
		<script type="text/javascript">
			var arr = [10,7,5,27,98,31]
			for(var j=0;j<arr.length-1;j++){
				for(var i=0;i<arr.length-1-j;i++){
					if(arr[i]>arr[i+1]){
						var temp = arr[i]
						arr[i] = arr[i+1]
						arr[i+1]=temp
					}
				}
			}
			
			console.log(arr)
//			for(var i=0;i<arr.length-1-1;i++){
//				if(arr[i]>arr[i+1]){
//					var temp = arr[i]
//					arr[i] = arr[i+1]
//					arr[i+1] = temp
//				}
//			}
//			console.log(arr)
		</script>
	</body>
</html>